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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/146165
Kind Code:
A silencer 40 connected to the air blowing pipe 30 of an air blowing working machine 10 is provided with: a silencer pipe 41 connected to the air blowing pipe 30 and having a sound absorbing material 42 disposed on the inner peripheral surface thereof; and a reflecting protrusion 43 which is provided protruding inward from the inner peripheral surface of the silencer pipe 41, and by which air flowing through the radial center of the silencer pipe 41 is reflected and caused to flow along and around the periphery of the sound absorbing material 42.

TAKANO Hideaki (3-11-8 Sumiyoshi-cho, Anjo-sh, Aichi 02, 〒4468502, JP)
Application Number:
Publication Date:
August 01, 2019
Filing Date:
October 02, 2018
Export Citation:
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MAKITA CORPORATION (3-11-8, Sumiyoshi-cho Anjo-sh, Aichi 02, 〒4468502, JP)
International Classes:
E01H1/08; B08B5/02; F01N1/24; F04D29/66; A47L9/00; A47L9/08
Foreign References:
Attorney, Agent or Firm:
KAI-U PATENT LAW FIRM (NAGOYA LUCENT TOWER 9F, 6-1 Ushijima-cho, Nishi-ku, Nagoya-sh, Aichi 09, 〒4516009, JP)
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